Freyssinet's expansion joints are designed to allow for continuous traffic between two structures by accommodating any movements in the structures caused by creep, shrinkage, temperature variations and deformation during service.

Freyssinet offers an extensive range of small and large-movement, bituminous, metal, elastomeric and modular expansion joints for road and railway structures.

Our Products

Viajoint bituminous expansion joint

CIPEC metal expansion joints

Elastomeric expansion joints

Modular expansion joints

TRANSPEC 4-18 joints for rail-based crash barriers

Railway expansion joints

Our Services

Inhouse Design

Expansion Joint Replacement

Expansion Joint Installation

Expansion Joint Supply

For more information on Expansion Joints,
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The Freyssinet flat jack is a thin hydraulic device capable of developing considerable forces in a simple and economic manner. The Freyssinet flat jack is a deformable steel capsule made out of two cold-formed steel halves welded together, presenting a circumferential circular toric rim. Two pipe fittings, one of which serves as a vent, allowing a fluid to be injected under pressure toopen the jack up to the height of the rim.

Applications

Loading of supports and foundation grounds: Flat jacks enable the transfer of loads with pre-determined values onto new supports used to strengthen the structure or the foundation ground

Thrust control: Arches can by loaded by exerting a thrust at their abutments or at the crown. Their deformations can be compensated or the distribution of bending moments can be improved

Compensation of deformation: In certain cases the variation in length due to shrinkage and to shortening of prestressed concrete must be compensated and this can be done by the action of flat jacks inserted in joints